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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                # 組件源碼 ``` /** * @category 取子字符串 * @param instr * 入參|原字符串|{@link java.lang.String} * @param begin * 入參|起始位置(0開始)|{@link int} * @param end * 入參|結束位置(-1時取之后的所有)|{@link int} * @param outstr * 出參|返回子串|{@link java.lang.String} * @return 0 失敗<br/> * 1 成功<br/> */ @InParams(param = { @Param(name = "instr", comment = "原字符串", type = java.lang.String.class), @Param(name = "begin", comment = "起始位置(0開始)", type = int.class), @Param(name = "end", comment = "結束位置(0時取之后的所有)", type = int.class) }) @OutParams(param = { @Param(name = "outstr", comment = "返回子串", type = java.lang.String.class) }) @Returns(returns = { @Return(id = "0", desp = "失敗"), @Return(id = "1", desp = "成功") }) @Component(label = "字符串截取", style = "判斷型", type = "同步組件", comment = "取子字符串", version = "1.0.0", deprecated = false, date = "2018-01-22 04:23:48") public static ResultBase P_substr(String instr, int begin, int end) { if (instr == null) { return ResultBase.newFailureResult("TPTS1004", "原字符串不能為空"); } if (begin < 0 || (end > 0 && end < begin) || begin >= instr.length()) { return ResultBase.newFailureResult("TPTS1005", "輸入起止位置不正確,begin=" + begin + ",end=" + end + ",原字符串長度=" + instr.length()); } if (end > 0 && end >= instr.length()) return ResultBase.newSuccessResult(instr.substring(begin, instr.length())); if (end > 0) { return ResultBase.newSuccessResult(instr.substring(begin, end)); } return ResultBase.newSuccessResult(instr.substring(begin)); } ``` # 交易中組件使用方式 ![](https://img.kancloud.cn/fc/eb/fcebb6b20a773c8f3776588a02c1376e_1872x890.png) # 參數說明及示例 ## 入口參數 原字符串:輸入一串字符串,示例: `"qweasdzxc"` 起始位置(0開始):開始截取的位置,示例: `2` 結束位置(0時取之后的所有):結束截取的位置,示例: `5` ## 出口參數 返回子串:截取的字符串,示例: `__INNER__["result"]`
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